Define "reasonably priced". Also, what are your plans for the sword? Backyard cutting? Do you plan to take a class in the art?
Do you want something through-hardened(slightly more prone to dulling, but considerably more durable should you botch a cut), or differentially-hardened(remains sharper, but has a higher probability of edge chipping).
Chenness has decent Shinken. They pretty much cater towards the beginning practitioner who cannot afford something nicer, but still requires something functional. They have various models.
Kris Cutlery has received ecxellent reviews over the years, and have only been getting better. They are great for the price, and I believe are all differentially-hardened. A quick etch or polish will usually bring out the Hamon quite nicely.
Hanwei carries Paul Chen, which are also good for the price. There are several levels of production, ranging from the Practical Katana(low end, some plastic fittings, all epoxied together), all the way up to high-end production pieces which will cost you out the butt.
SBG(Sword Buyers Guide) forum has a customizable Katana for sale somewhere. I've heard it's a decent blade, and you get a pretty good range of fittings to mix and match. For $300(us), you could do MUCH worse.
http://sbg-sword-store.sword-buyers-guide.com/custom.html